From: Bosch Sensortec Date: Tue, 17 Mar 2020 08:41:54 +0000 (+0100) Subject: Removed self-test X-Git-Url: http://git.itanic.dy.fi/?p=BME280_driver;a=commitdiff_plain;h=3d686a326565b9cadb8507f73d7576ec0cc891f2 Removed self-test --- diff --git a/selftest/bme280_selftest.c b/selftest/bme280_selftest.c deleted file mode 100644 index 4bce46c..0000000 --- a/selftest/bme280_selftest.c +++ /dev/null @@ -1,146 +0,0 @@ -/** -* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved. -* -* BSD-3-Clause -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* -* 1. Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* -* 2. Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in the -* documentation and/or other materials provided with the distribution. -* -* 3. Neither the name of the copyright holder nor the names of its -* contributors may be used to endorse or promote products derived from -* this software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING -* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. -* -* @file bme280_selftest.c -* @date 2020-01-24 -* @version v3.4.3 -* -*/ - -#include "bme280_selftest.h" - -#define BME280_CRC_DATA_ADDR UINT8_C(0xE8) -#define BME280_CRC_DATA_LEN UINT8_C(1) -#define BME280_CRC_CALIB1_ADDR UINT8_C(0x88) -#define BME280_CRC_CALIB1_LEN UINT8_C(26) -#define BME280_CRC_CALIB2_ADDR UINT8_C(0xE1) -#define BME280_CRC_CALIB2_LEN UINT8_C(7) - -/*! - * @brief This API calculates the CRC - * - * @param[in] mem_values : reg_data parameter to calculate CRC - * @param[in] mem_length : Parameter to calculate CRC - * - * @return Result of API execution status - * @retval zero -> Success / +ve value -> Warning / -ve value -> Error - */ -static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length); - -/*! - * @brief This API reads the stored CRC and then compare with calculated CRC - * - * @param[in] dev : Structure instance of bme280_dev. - * - * @return Result of API execution status - * @retval zero -> self test success / +ve value -> warning(self test fail) - */ -int8_t bme280_selftest_crc(const struct bme280_dev *dev) -{ - int8_t rslt; - uint8_t reg_addr; - uint8_t reg_data[64]; - uint8_t stored_crc = 0; - uint8_t calculated_crc = 0; - - /* Read stored crc value from register */ - reg_addr = BME280_CRC_DATA_ADDR; - rslt = bme280_get_regs(reg_addr, reg_data, BME280_CRC_DATA_LEN, dev); - if (rslt == BME280_OK) - { - stored_crc = reg_data[0]; - - /* Calculated CRC value with calibration register */ - reg_addr = BME280_CRC_CALIB1_ADDR; - rslt = bme280_get_regs(reg_addr, ®_data[0], BME280_CRC_CALIB1_LEN, dev); - if (rslt == BME280_OK) - { - reg_addr = BME280_CRC_CALIB2_ADDR; - rslt = bme280_get_regs(reg_addr, ®_data[BME280_CRC_CALIB1_LEN], BME280_CRC_CALIB2_LEN, dev); - if (rslt == BME280_OK) - { - calculated_crc = crc_calculate(reg_data, BME280_CRC_CALIB1_LEN + BME280_CRC_CALIB2_LEN); - - /* Validate CRC */ - if (stored_crc == calculated_crc) - { - rslt = BME280_OK; - } - else - { - rslt = BME280_W_SELF_TEST_FAIL; - } - } - } - } - - return rslt; -} - -/*! - * @brief This API calculates the CRC - * - * @param[in] mem_values : reg_data parameter to calculate CRC - * @param[in] mem_length : Parameter to calculate CRC - * - * @return Result of API execution status - * @retval zero -> Success / +ve value -> Warning / -ve value -> Error - */ -static uint8_t crc_calculate(uint8_t *mem_values, uint8_t mem_length) -{ - uint32_t crc_reg = 0xFF; - uint8_t polynomial = 0x1D; - uint8_t bitno, index; - uint8_t din = 0; - - for (index = 0; index < mem_length; index++) - { - for (bitno = 0; bitno < 8; bitno++) - { - if ((crc_reg & 0x80) != (mem_values[index] & 0x80)) - { - din = 1; - } - else - { - din = 0; - } - - /* Truncate 8th bit for crc_reg and mem_values */ - crc_reg = (uint32_t)((crc_reg & 0x7F) << 1); - mem_values[index] = (uint8_t)((mem_values[index] & 0x7F) << 1); - crc_reg = (uint32_t)(crc_reg ^ (polynomial * din)); - } - } - - return (uint8_t)(crc_reg ^ 0xFF); -} diff --git a/selftest/bme280_selftest.h b/selftest/bme280_selftest.h deleted file mode 100644 index e1908db..0000000 --- a/selftest/bme280_selftest.h +++ /dev/null @@ -1,73 +0,0 @@ -/** -* Copyright (c) 2020 Bosch Sensortec GmbH. All rights reserved. -* -* BSD-3-Clause -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* -* 1. Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* -* 2. Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in the -* documentation and/or other materials provided with the distribution. -* -* 3. Neither the name of the copyright holder nor the names of its -* contributors may be used to endorse or promote products derived from -* this software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING -* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. -* -* @file bme280_selftest.h -* @date 2020-01-24 -* @version v3.4.3 -* -*/ - -/*! - * @addtogroup bme280_selftest - * @brief - */ - -#ifndef BME280_SELFTEST_H_ -#define BME280_SELFTEST_H_ - -#include "bme280.h" - -/*! CPP guard */ -#ifdef __cplusplus -extern "C" { -#endif - -/**\name API warning code */ -#define BME280_W_SELF_TEST_FAIL INT8_C(2) - -/*! - * @brief This API reads the stored CRC and then compare with calculated CRC - * - * @param[in] dev : Structure instance of bme280_dev. - * - * @return Result of API execution status - * @retval zero -> Success / +ve value -> Warning / -ve value -> Error - */ -int8_t bme280_selftest_crc(const struct bme280_dev *dev); - -/*! CPP guard */ -#ifdef __cplusplus -} -#endif - -#endif /* BME280_SELFTEST_H_ */ -/** @}*/